Alton Road snakes up the western (Biscayne Bay) side of the barrier islands comprising Miami Beach, while Collins Avenue parallels the Atlantic shore to the east.

SR 907 heads north as Alton Road, through South Beach, as a commercial County fair, staying within 1-3 blocks east of Biscayne Bay.

Two blocks south of Dade Boulevard, SR 907 reaches the westernmost end of Lincoln Road Mall, one of America's first open-air pedestrian shopping centers.

It leaves South Beach north of the Dade Boulevard intersection and two blocks later, crosses Michigan Avenue, where Alton Road becomes a residential street.

It then curves slightly west before continuing north, and passes by the western end of the Miami Beach Country Club.

Alton Road continues north through a residential area, intersecting with its northern terminus of SR 907 at the Mount Sinai Medical Center entrance.